Revision- term 3 science

6. Comet a comet that is visible to earth every 75-76 years
7. an obscuring of the light from one celestial body by the passage of the other
9. the branch of science which deals with all sorts of things in space
10. Hole The scariest thing in space
11. the sun or the moon
12. the representing of earth as the centre, as in former astronomical system
14. a group of stars that form a particular pattern
15. Giant a very large red star
18. an imaginary line that a body/planet rotates
20. the largest gas giant out of all our planets

1. the fourth planet away from the sun
2. the representing of the sun as the centre
3. the man who helped prove the geocentric model
4. an extremely large group of planets and stars
5. the movement of one object around a centre or another object
8. an oval shape in which our planets orbit
13. a mass of rock that moves around in space
16. an extremely large hot ball of gas that appears as a small bright light in the sky at night
17. a dwarf planet which is the closest to Neptune
19. the biggest star in our solar system